Half to a



(No Model.)

B. W. TAVENER.

-v NAILING MACHINE.

Patented Dec. 18, 1883.

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UNITED saris PATENT @rrica ROBERT \V. TAVENER, OF WEST BAY CITY, MIGHIGAX, ASSIGNOR OF ONE- HALF TO A. D. OATLIX, OF SAME PLACE.

NAlLlNG-IVIACHlNE.

SPECIFICATION forming part of Letters Patent No. 290,493, dated December 18, 18133,

Application filed June 9,1883. No model.) v

To all 1072,0122 it may concern.-

Be it known that I, Bonner W. Tnvnnnn, of West Bay City, in the county of Bay and State of Michigan, have invented new and useful Improvements in Nailing Machines; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, which form a part of this specification.

This invention 'relates to certain new and useful improvements in devices especially employed in driving staples and nails into the overlapping ends of hoops, for the purpose of I 5 securing the same; and the invention consists in the peculiar construction and arrangement of a reciprocating anvil which clamps the overlapping ends of the hoop between the anvil and the female die or stationary guide for the followers; in the peculiar construction, arrangement, and application of a reciproeating hammer head, by means of which the staple and nails are driven through the hoop and their points clinched; and in the peculiar construction, arrangement, and various combinations of parts, all as more fully hereinafter set forth.

Figure 1 is a top plan of my improved device ready to receive the hoop. Fig. 2 is a similar view, showing the position of parts at the completion of the operation of driving the staples and nails. Fig. 3 is a vertical cross-section on the lineX X in Fig. 2. Fig. 4. is a bottom plan.

In. the accompanying drawings, which form a part of this specification, A represents a suitable base, preferably of the form shown, and designed to be rigidly secured to a bench or block.

B represents a slide, which fits into a recess in the top of the frame A, and has a reciprocating motion therein. To the top of this slide B is rigidly secured the anvil O, the face of which forms the segment of a circle.

D representsa similar slide, likewise having a reciprocating motion parallel with that of the slide B, and has secured to it rigidly the hammer-head E, the followers or hammers F of which have a reciprocating motion in channels a b in the guide G, which is rigidly secured to the top of the base A and i1nn1ediately above the slides B D, thus securing such slides within the base and preventing their accidental displacement.

To one end of the hammer-slide D is pivotally secured the inner end of a lever, H, to which lever is pivotally secured one end of the toggle-lever I, the opposite end of which is pivotally secured to the end of the anvilslide B. Beneath the hammer-slide and to it I secure one end of a coil-spring, J, the opposite end of which is secured in any convenient manner to the wall of the base.

In practice, the parts being in the position shown in Fig. 1, a staple is dropped into the 6 5 groove cajwhile nails will drop into grooves b (one in each) of the guide G. The overlapping ends of the hoop are now introduced between the anvil and the guide G. By drawing or pulling upon the lever 11, the anvil and slide are brought in contact with the inner face of the hoop, clamping the same between the anvil and the guide, the tension of the spring J upon the hammer-slide being such as to retain such hammer-slide in its position until the anvil-slide is brought to a rest by the contact of the anvil with the inside of the hoop. A further movement of the lever now compels the hammer-head with its slide to advance toward the guide, the hammers driving or pushing in advance of them the staple and nails, which are thus driven through the hoop and clinched upon the face of the anvil. Upon releasing the handle the tension of the spring causes the parts to assume their original position, ready to receive another hoop.

It will be observed that the grooves or channels a b are not upon a line, but that the groove a is so arranged that the staple will be driven into the center of the hoop, or so that it will straddle the point of the overlapping end and pass through the under lap and clinch, while the nail contiguous to the staple passes through the center of the loop, the next nail through the hoop near the upper edge, while the last one passes through near the lower edge, securely fastening the overlapping ends together.

By the use of this device I am enabled to drive a staple and three nails and clinch them at the one movement of the lever; and it can readily be seen that if more nails are required it is only necessary to provide more followers or hammers and a greater number of channels through the guide, and that if the machine is made of sufficient size it could take in and nail the entire end of the overlap, as such is only a matter of degree.

\Vhat I claim as my invention is 1. In a hoop-nailing machine, a reciprocating anvil constructed to hold a hoop against a guide, and a reciprocating hammer adapted to drive and clinch the staples and nails at one operation,in combination With means, substantially as described, for actuating the same, as set forth.

2. In a nailing-machine, and in combination With the base A and hammer mechanism thereof, the guide G, anvil O, and means for moving said anvil for the purpose of clamp- R. V. TAVENER.

\Vitnesses:

H. S. SPRAGUE, E. SoULLY. 

